package com.dzu.gulimall.order.config;

import feign.RequestInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author ZhaoDong
 * @date 2022/7/16 20:58
 * @description gulimall
 */
@Configuration
public class GulimallFeignConfig {

    @Bean
    public RequestInterceptor requestInterceptor() {
        return template -> {
            // 1、RequestContextHolder拿到刚进来的这个请求，用的也是thread local
            ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            if (requestAttributes != null) {
                HttpServletRequest request = requestAttributes.getRequest();
                // 2、同步请求头数据，Cookie
                String cookie = request.getHeader("Cookie");
                // 给新请求同步了老请求的cookie
                template.header("Cookie", cookie);
            }

        };
    }
}
